LAARS NeoTherm LC NTV1700 - Install and Operating Manual - Manual (Page 88)

LAARS Heating Systems Page 84
Label Description How to Reach
DHW
(Domestic
Hot Water)
pump control
The DHW pump (Pump C) can be turned
on manually, or it can be set to operate
automatically. If it is turned on then it remains
on until changed back to Auto. In Auto mode
it operates according to the DHW demand, the
start delay timer and the overrun time.
<’home’ screen> Select a controller
Configure
button Pump
Configuration/ Left- or Right- arrow
buttons Control
Settings button
DHW
(Domestic
Hot Water)
pump cycle
count
This can be written to a new value if the pump
or controller is replaced.
<’home’ screen> Select a controller
Configure
button Select
Statistics Configuration line
DHW
(Domestic
Hot Water)
Setpoint
This setpoint is used for Domestic Hot Water
whenever the Time-Of-Day switch is off or not
connected (unused).
If Lead/Lag enabled –
<’home’ screen> Lead/Lag Master button
Configure
button
screen>
DHW
(Domestic
Hot Water)
TOD (Time
of Day)
Setpoint
This setpoint is used for Domestic Hot Water
when the Time-Of-Day switch is on.
If Lead/Lag enabled –
<’home’ screen> Lead/Lag Master button
Configure
button
screen>
Flap valve
controller ID
Each flap valve has a unique ID number. On
a system with 4 boilers, there would be 8 flap
valves, numbered 1 through 8.
<’home’ screen> Select a controller
Configurate
button
Lead lag CH
outdoor reset
enable
This line is used to turn on the Outdoor Reset
function when the Lead/Lag system is enabled.
If Lead/Lag enabled –
<’home’ screen> Lead/Lag Master button
Configure
button
screen> Advanced Settings button/ Left-
or Right- arrow buttons
screen>
Lead lag CH
setpoint
This is the setpoint used for Central Heat when
the Lead/Lag system is enabled.
If Lead/Lag enabled –
<’home’ screen> Lead/Lag Master button
Configure
button
screen>
Lead lag
CH setpoint
source
When Lead/Lag is enabled, this sets the source
of the System sensor input used to control the
system. The options here are Local and 4-20
mA.
‘home’ screen/ View Lead/Lag button/
Lead/Lag screen/ Lead/Lag Master
button/ Lead/Lag Master screen/
Configure button/ Lead/Lag Master
Configuration screen/ Advanced Settings
button/ Left- or Right- arrow buttons/
Central Heat screen
Lead lag CH
TOD setpoint
This is a different setpoint used for Central Heat
when the Lead/Lag system is enabled and the
input from the Time Of Day switch is “true.”
If Lead/Lag enabled –
<’home’ screen> Lead/Lag Master button
Configure
button
screen>